Necrozma-Dusk-Mane @ Weakness Policy  
Ability: Prism Armor  
EVs: 248 HP / 200 Def / 60 Spe  
Impish Nature  
- Morning Sun  
- Dragon Dance  
- Earthquake  
- Sunsteel Strike  

Rayquaza-Mega @ Choice Band  
Ability: Air Lock  
EVs: 252 Atk / 4 Def / 252 Spe  
Adamant Nature  
- Dragon Ascent  
- V-create  
- Earthquake  
- Rest  

Lunala @ Heavy-Duty Boots  
Ability: Shadow Shield  
EVs: 252 HP / 56 Def / 200 Spe  
Timid Nature  
IVs: 0 Atk  
- Hex  
- Will-O-Wisp  
- Toxic  
- Roost  

Ho-Oh @ Heavy-Duty Boots  
Ability: Regenerator  
EVs: 248 HP / 208 Def / 52 SpD  
Impish Nature  
- Sacred Fire  
- Toxic  
- Defog  
- Whirlwind  

Chansey (F) @ Eviolite  
Ability: Natural Cure  
EVs: 4 HP / 252 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Soft-Boiled  
- Aromatherapy  
- Shadow Ball  
- Stealth Rock  

Zacian-Crowned @ Rusted Sword  
Ability: Intrepid Sword  
EVs: 252 Atk / 4 SpD / 252 Spe  
Adamant Nature  
- Rest  
- Play Rough  
- Wild Charge  
- Crunch